A storm walker was a Nihil walker during the High Republic Era. In 229 BBY, a storm walker took part in a skirmish on Gallimere. It was destroyed by Jedi Master Keeve Trennis.
The storm walker appeared in "All the Republic," the sixth story in Revelations (2023) 1, which was written by Cavan Scott and illustrated by Marika Cresta. The one-shot comic was published by Marvel Comics on December 20, 2023 and served as a sneak peek for the main comic run of Star Wars: The High Republic's Phase III.